Steel 30CH13 (upon a time 3x13)

Designation

Name	The value
Designation GOST Cyrillic	30Х13
Designation GOST Latin	30X13
Transliteration	30H13
By chemical elements	30Cr13

Name	The value
Designation GOST Cyrillic	3Х13
Designation GOST Latin	3X13
Transliteration	3H13
By chemical elements	3Cr13

Description

Steel 30CH13 used: for the manufacture of cutting, measuring tools, springs, carburetor needle rods reciprocating compressors, parts of internal devices devices and various other parts that work wear in a slightly aggressive media up to +450 °C; for the production of various critical parts of the aircraft industry, springs, designed for operation at temperatures up to 300−350 °C and other components operating at high voltages; spring persistent flat internal eccentric rings used for fixation of parts in buildings up to +300 °C; solid-rolled rings for different purposes.

Note

Steel chromium corrosion-resistant martensitic class.
Steel is used after quenching and low tempering with ground and polished surface has a high hardness.

Standards

Name	Code	Standards
Bars and shapes	В22	GOST 1133-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Wire, steel, alloy	В73	GOST 18143-72
Processing of metals by pressure. Forgings	В03	GOST 25054-81, OST 5Р.9125-84, OST 26-01-135-81, TU 14-1-1530-75, TU 0306.018-80, ST ЦКБА 010-2004
Sheets and strips	В33	GOST 4405-75, GOST 5582-75, TU 14-1-1422-75, TU 14-1-2186-77, TU 14-1-3620-83
Tape	В34	GOST 4986-79
Classification, nomenclature and General rules	В30	GOST 5632-72
Bars and shapes	В32	GOST 5949-75, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, GOST 18907-73, OST 1 92049-76, TU 14-1-2972-80, TU 14-1-377-72, TU 14-1-3957-85, TU 14-1-5.15-74, TU 14-1-655-73, TU 14-11-245-88, TU 14-1-5162-92
Classification, nomenclature and General rules	В20	OST 1 90005-91
Blanks. Of the workpiece. Slabs	В21	OST 1 90176-75
Blanks. Of the workpiece. Slabs	В31	OST 3-1686-90, OST 95-10-72, TU 24-03.113-91
Thermal and thermochemical treatment of metals	В04	STP 26.260.484-2004, ST ЦКБА 016-2005
Castings with special properties (iron and steel)	В83	TU 14-1-1650-76

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	V	Ti	Mo	W
TU 14-1-2186-77	0.25-0.34	≤0.025	≤0.03	≤0.6	12-14	≤0.6	≤0.5	Rest	≤0.3	≤0.2	≤0.2	≤0.3	≤0.2
TU 14-1-5162-92	0.26-0.35	≤0.025	≤0.03	≤0.8	12-14	≤0.8	≤0.6	Rest	≤0.3	≤0.2	≤0.2	≤0.3	≤0.2

Fe is the basis.
According to TU 14-1-2186-77 for steel smelted with electroslag remelting the content of S ≤ 0.015%.

Mechanical properties

Section, mm	t отпуска, °C	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d₄	d	y, %	KCU, kJ/m²	HB, MPa	HRC
A sample with a diameter of 6 mm and a length of 30 mm, deformed. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
-	-	≥77	≥89	≥67	-	-	≥98	-	-	-
Bars at 20 °C. Quenching in air from 1,000 °C to + Vacation at 650 °C, air cooling (indicated temperature and time of heat exposure)
-	-	≥670	≥860	≥16	-	-	-	-	-	-
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
-	-	-	1520-1810	-	-	-	-	-	-	44-50
A sample with a diameter of 6 mm and a length of 30 mm, deformed. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
-	-	≥93	≥130	≥82	-	-	≥82	-	-	-
Bars at 20 °C. Quenching in air from 1,000 °C to + Vacation at 650 °C, air cooling (indicated temperature and time of heat exposure)
-	-	≥610	≥800	≥18	-	-	-	-	-	-
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
-	-	-	-	-	-	-	-	-	-	48-55
Billet (forgings) OST 95-10-72. Quenching in oil or air from 950-1050 °C + Vacation, cooling in oil or air (sample)
≤200	200-350	-	-	-	-	-	-	-	-	45-53
A sample with a diameter of 6 mm and a length of 30 mm, deformed. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
-	-	≥50	≥76	≥70	-	-	≥97	-	-	-
Bars at 20 °C. Quenching in air from 1,000 °C to + Vacation at 650 °C, air cooling (indicated temperature and time of heat exposure)
-	-	420-450	≥670	23-26	-	-	-	-	-	-
Billet (forgings) OST 95-10-72. Quenching in oil or air from 950-1050 °C + Vacation, cooling in oil or air (sample)
≤200	600-680	≥588	≥805	≥12	-	-	≥45	≥392	217-255	26-33
A sample with a diameter of 6 mm and a length of 30 mm, deformed. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
-	-	≥37	≥43	≥71	-	-	≥98	-	-	-
Bars at 20 °C. Quenching in air from 1,000 °C to + Vacation at 650 °C, air cooling (indicated temperature and time of heat exposure)
-	-	≥620	≥800	≥20	-	-	-	-	-	-
Blank pieces of pipe fittings according to ST CKBA 016-2005. Quenching in oil 1000-1050 °C + Vacation, air cooling
≤60	220-300	1176-1372	1470-1666	1-6	-	-	2-7	-	460-530	49.5-55.5
A sample with a diameter of 6 mm and a length of 30 mm, deformed. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
-	-	≥26	≥29	≥74	-	-	≥98	-	-	-
Blank pieces of pipe fittings according to ST CKBA 016-2005. Quenching in oil 1000-1050 °C + Vacation, air cooling
≤60	650-670	≥686	≥882	≥10	-	-	≥40	≥294	269-330	29-37
Hire. Normalization 1000 °C (air cooling) + Vacation at 650 °C (delay 2-3 hours)
-	-	≥700	≥940	≥16	-	-	≥52	-	-	-
Blank pieces of pipe fittings according to ST CKBA 016-2005. Quenching in oil 1000-1050 °C + Vacation, air cooling
≤60	670-720	≥588	≥784	≥12	-	-	≥42	≥392	235-277	23-30
Hire. Normalization 1000 °C (air cooling) + Vacation at 650 °C (delay 2-3 hours)
-	-	≥660	≥820	≥14	-	-	≥58	-	-	-
Blank pieces of pipe fittings according to ST CKBA 016-2005. Quenching in oil 1000-1050 °C + Vacation, air cooling
60-200	670-720	≥588	≥735	≥12	-	-	≥40	≥392	235-277	23-30
Hire. Normalization 1000 °C (air cooling) + Vacation at 650 °C (delay 2-3 hours)
-	-	≥630	≥770	≥13	-	-	≥53	-	-	-
Cold-rolled steel strip of 0.05-2.00 mm according to GOST 4986-79. Annealing or vacation at 740-800 °C (samples)
0.2-2	-	-	≥540	-	≥15	-	-	-	-	-
Hire. Normalization 1000 °C (air cooling) + Vacation at 650 °C (delay 2-3 hours)
-	-	≥570	≥710	≥13	-	-	≥53	-	-	-
Cold-rolled steel strip of 0.05-2.00 mm according to GOST 4986-79. Annealing or vacation at 740-800 °C (samples)
0.2	-	-	≥540	-	≥8	-	-	-	-	-
Hire. Normalization 1000 °C (air cooling) + Vacation at 650 °C (delay 2-3 hours)
-	-	≥530	≥610	≥14	-	-	≥55	-	-	-
-	-	≥410	≥450	≥21	-	-	≥81	-	-	-
Hot rolled sheet (of 1.5-3.9 mm) and cold rolled (0,7-3,9 mm) steel according to GOST 5582-75. Annealing or vacation at 740-800 °C
-	-	-	≥540	≥17	-	-	-	-	-	-
Forgings. Quenching in oil 1000-1050 °C + vacation at 620-680 °C, air cooling
≤300	-	-	-	-	-	-	-	-	269-302	-
Forgings. Quenching in oil 1000-1050 °C + Vacation at 700-750 °C, air cooling
≤300	-	≥710	≥850	≥12	-	-	≥40	≥350	-	-
1000	-	≥588	≥735	≥14	-	-	≥40	≥290	-	-
The wire is heat-treated in the delivery condition according to GOST 18143-72 (elongation, % at rated sample length of 100 mm is specified for the wire of the 1st class in brackets are for 2nd class)
1-6	-	-	590-830	-	-	≥16 (≥12)	-	-	-	-
Wire. Annealing or vacation at 740-800 °C
1-6	-	-	490-830	-	≥12	-	-	-	-	-
Bars with special surface finish as supplied on the other 14-1-5162-92. Annealing. Elongation is specified at rated specimen length 100 mm
	-	-	530-780	-	-	≥12	-	-	-	-
Bars with special surface finish on the other 14-1-5162-92. Quenching in oil 1000-1050 °C + Vacation at 440-460 °C, air cooling. Elongation is specified at rated specimen length 100 mm
	-	-	1520-1810	-	-	≥3.5	≥40	-	-	44-50
Bars processed on a given strength (TS) according to GOST 18907-73
≥5	-	-	530-780	-	-	≥12	-	-	-	-
Bars hot rolled and forged at STP 26.260.484-2004. Quenching in oil 1000-1050 °C + Vacation, air cooling
	250-300	≥1400	≥1700	≥10	-	-	≥35	≥490	-	-
	350-400	≥1300	≥1600	≥10	-	-	≥35	≥490	-	-
	600-650	≥700	≥900	≥16	-	-	≥35	≥490	-	-
	700-750	≥600	≥800	≥13	-	-	≥45	≥588	-	-
Forming at OST 1 90176-75. Quenching in oil or air from 1000-1050 °C + Vacation at 200-300 °C, cooling in air or in oil
	-	-	-	-	-	-	-	-	-	≥48

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
d₄	Elongation after rupture
d	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number
HRC	Rockwell hardness (indenter diamond spheroconical)

Physical characteristics

Temperature	Е, HPa	G, HPa	r, kg/m³	l, W/(m · °C)	R, Mr. · m	a, 10^-6 1/°C	С, J/(kg · °C)
0	216	86	7670	-	522	-	-
20	223	-	7670	-	522	-	-
100	212	84	7650	26	595	102	473
200	206	81	7620	27	684	109	486
300	196	77	7600	28	769	111	504
400	187	74	7570	28	858	117	525
500	177	69	7540	27	935	12	532
600	166	64	7510	27	1015	123	586
700	-	-	7480	27	1099	125	641
800	-	-	7450	25	-	126	679
900	-	-	7460	27	-	-	657
1000	-	-	-	-	-	106	691
1200	-	-	-	-	-	122	682

A description of the physical symbols

Name	Description
Е	The normal elasticity modulus
G	Modulus of elasticity shear torsion
r	Density
l	Coefficient of thermal conductivity
R	UD. the resistivity
a	The coefficient of linear expansion
С	Specific heat

Technological properties

Name	The value
Weldability	Does not apply to welded structures.
Склонность к отпускной хрупкости	Malosolone.
The temperature of forging	Start - 1250 °C, the end - 850 °C. the cross Sections up to 400 mm are subjected to low-temperature annealing, one hypothermia.
Flock-sensitive sensitivity	not sensitive.
Machinability	In the hardened and tempered condition with a NV 241 and blower SB=730 MPa Kn TV.SPL.=0,7 Kn b.St.=0,45. To improve the machinability and the hardness HB ≤ 205 of the workpiece is subjected to annealing at 740-780 °C for 2-6 h with air cooling.
Features of heat treatment	Steel products can be subjected to hardening, leave, annealing. The quenching and tempering of the products is done to achieve: a) maximum corrosion resistance; b) the specified level of mechanical properties. Hardening of steel products is carried out in oil with 1000-1050 °C. the holding Time at the heating for hardening to products with a wall thickness or diameter up to 10 mm - 20 min., above 10mm-20 min + 1 min per 1 mm maximum thickness. Steel sensitive to cracking, so heating of thick-walled and complex configuration of products for hardening start with 500-650 °C and are slowly to 800 °C, after equalizing the temperature of the heating rate should be increased. Immediately after quenching (in order to avoid spontaneous cracking) products of martensitic steels must be subjected to the release. The maximum strength properties of the products acquired after the holidays according to the mode: heating up to 250-300 °C, exposure 1-3 h, air cooling. Maximum corrosion resistance and formability products acquired after the holidays according to the mode: heating up to 700-750 °With, exposure time - 20 min + 1 min per 1 mm maximum metal thickness, but not less than 40 min, cooling in oil. Softening heat treatment is annealing at 750-850 °C with cooling with the furnace to 500 °C. the Elastic elements, made of steel 30X13, after quenching is subjected to release at 400 °C exposure time 1-2 h, air cooling. Not allowed vacation at 450-550 °C, Since this leads to a decrease in toughness. Workpiece to improve the mechanical workability is subjected to intermediate annealing at 600-760 °C for 2-4 h To obtain characteristic values of mechanical properties and hardness set ST CKBA 010 and to achieve maximum corrosion resistance, parts (workpiece) valves shall be subjected to hardening and tempering. The heating of the parts (workpieces) in the temperature range from 500 °C to 800 °C must be carried out at a speed of not more than 200 °C per hour. In the temperature range 750 - 800 °C it is necessary to give exposure to the full heating of the charge. Further heating to the quenching temperature produced by the furnace. For parts with thickness (diameter) up to 120 mm the rate of heating is not limited and aging at a temperature of from 750 °C to 800 °C is not possible. The time between quenching and the beginning of vacation - less than 3 hours. Parts included in friction and sealing shutter valves, can be subjected to surface hardening with heating by high frequency currents (HFC) with the aim of improving hardness while maintaining high mechanical properties in the core part. Surface hardening with heating HDTV applies to parts of thickness (diameter) of not less than 15 mm and is made only after a preliminary heat treatment improves the hardness to 36.5 HRC.